Php 4:6 Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. Php 4:7And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.
This is a very well known verse, yet how difficult we find it to truly practice! We are instructed to not worry, but instead to bring all of our requests to God in earnest prayer. Notice also that our prayer is to include real thankfulness. If we do this, we are promised peace, the peace of God, the assurance of God that is only really known by experience. This peace, through Jesus Christ, guards us from fears and anxiety.